EP0780099B1 - Instrumentensatz zur Bearbeitung von Zahnwurzelkanälen - Google Patents

Instrumentensatz zur Bearbeitung von Zahnwurzelkanälen Download PDF

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Publication number
EP0780099B1
EP0780099B1 EP96105242A EP96105242A EP0780099B1 EP 0780099 B1 EP0780099 B1 EP 0780099B1 EP 96105242 A EP96105242 A EP 96105242A EP 96105242 A EP96105242 A EP 96105242A EP 0780099 B1 EP0780099 B1 EP 0780099B1
Authority
EP
European Patent Office
Prior art keywords
instrument
instruments
conical shape
fact
point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96105242A
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English (en)
French (fr)
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EP0780099A2 (de
EP0780099A3 (de
Inventor
Pierre-Luc Maillefer
Francois Aeby
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dentsply Maillefer Instruments Holding SARL
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Maillefer Instruments Holding SARL
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Publication date
Application filed by Maillefer Instruments Holding SARL filed Critical Maillefer Instruments Holding SARL
Publication of EP0780099A2 publication Critical patent/EP0780099A2/de
Publication of EP0780099A3 publication Critical patent/EP0780099A3/de
Application granted granted Critical
Publication of EP0780099B1 publication Critical patent/EP0780099B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
    • A61C5/42—Files for root canals; Handgrips or guiding means therefor

Definitions

  • the subject of the present invention is a set of instruments for the bore of dental root canals which are passed successively through said canals.
  • the bore of the dental root canals involves a first step, called catheterization, which consists in engaging in the root canal a very fine instrument, up to the apical foramen. This operation is always carried out manually.
  • step back consists of passing a succession of instruments whose diameter is increasing, reducing the length bored with each increase in diameter. This method is relatively long and does not allow the practitioner to observe, as far as possible, the work done.
  • step-down consists in first open the coronal part of the tooth and then penetrate, by means of a series of increasingly fine instruments, up to the apical zone.
  • the first family includes a series of instruments made up of a short cutting part, followed by a thin and flexible neck, itself connected to a handle which is fixed in a handpiece ensuring the mechanical drive of the instrument.
  • the diameter of the active part increases in arithmetic progression, the interval between two numbers being 0.025 mm.
  • a second family is made up of instruments, the active part of which 16 mm long, has a taper of 0.04 mm per millimeter in length. This active part is directly followed by a cylindrical portion serving as connection to the instrument handle. The progression of the diameter at the tip of the active end is 29% between each number.
  • a third family includes instruments with an active length of 16 mm and conical casing, these instruments all having the same diameter at their end; their taper increases by 0.05 mm for each number.
  • a final family includes sets of instruments as described in document EP 0 501 255. These sets of instruments include instruments whose terminal diameters are different but at least two of which have the same terminal diameter and different taper rods.
  • the object of the invention is to allow a new method for reaming dental root canals, after the catheterization step, and provide new instruments allowing the implementation of this method, which is both safer and more effective than known methods.
  • This new method is also faster and does not require as many instruments as known methods.
  • the instrument shown in fig. 1 includes a rod of circular section 1, made of a nickel-titanium alloy, fitted, at its rear, in a handle 2 intended to engage in a corner piece ensuring training instrument mechanics.
  • the rod 1 is tapered, its front part, indicated in L, having two helical grooves 3 with cutting lips.
  • L ' the front part
  • D 3 the diameter of the instrument at this point
  • the number of grooves with cutting edges may be greater than two.
  • the second instrument of the game of FIG. 2, designated by 1 b is distinguished from the first by the fact that the opening angle of the taper of its part located between the points D 9 and D 16 increases more than for the instrument 1 a .
  • FIG 2 also shows that the taper of the front part of the instruments 1a, 1b and 1c, between the tip of these instruments and their diameter D9, is the same for these three instruments.
  • the taper of its anterior part, before the diameter D9, increases compared to that of instrument 1c.
  • the taper of its anterior and posterior parts increases compared to instrument 1c.
  • This set of instruments allows the practitioner who manually performed the first stage of the bore, called catheterization, consisting in engaging in the canal a very fine instrument, until the apical foramen, to use then, successively, the instruments 1a to 1e of the game, driven mechanically, in starting with instrument 1a and ending with instrument 1e.
  • the tip of the apical part is not unnecessarily bored thanks to the fact that the tip of the instrument whose taper will be 2% for example, on a 3 mm long, has no cutting edges.
  • the present set of instruments which allows its implementation leads to the creation of a more open and above all more regular channel, which ensures optimal sealing conditions for the canal.
  • the passage of the last instrument 1e makes a finishing bore.
  • the root canal thus bored does not have no solution of continuity along its surface, forming "stairs", as is the case when the instruments known, in particular the so-called Gate type instruments, are used.
  • the taper of the game instruments varies at only one point, up to the diameter D 9 .
  • the taper will vary in more than one point, for example at the height of the diameter D 9 and the diameter D 13 located 13 mm from the tip of the instrument.
  • the flared or trumpet shape of the instrument can be produced by a continuous variation the opening angle of its cone.
  • the generator of its surface will not be constituted by a line broken, as in the case of the example described and represented, but by a curve tending towards the central axis of the instrument, beyond the tip of the latter.
  • the taper of the front part of the instrument located in front of the diameter D 9 thereof, will be of the order of 2%, the taper of the rear part may range from 4.5 to near 6%.
  • the number of game instruments can be greater than or less than five, case of the example described and represented.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Claims (4)

  1. Satz von mindestens fünf Instrumenten für die Bohrung der Zahnwurzelkanäle, in welchem jedes Instrument (1a bis 1e) eine verjüngte Stange (1) aufweist, die, auf mindestens einem Teil ihrer Länge (2), der ihren aktiven Teil darstellt, mindestens eine spiralförmige, schneidende Kante besitzt, wobei diese Stange (1) für alle Instrumente des Satzes eine Spitze gleichen Durchmessers besitzt und eine Konizität, deren Öffnungswinkel in ihrem hinteren Teil (D9 - D16) nahe am Griff des Instruments größer ist als der Öffnungswinkel in ihrem vorderen Teil (D3 - D9) nahe an der Spitze des Instruments, dadurch gekennzeichnet, daß die ersten zwei oder drei Instrumente (1a, 1b, 1c) des Satzes einen zwischen ihrer Spitze und ihrem hinteren Teil (D9 - D16) befindlichen vorderen Teil (D3 - D9) aufweisen, der eine identische Konizität besitzt, während die Konizität des hinteren Teils (D9 - D16) dieser ersten zwei oder drei Instrumente (1a, 1b, 1c) von einem Instrument zum nächsten anwächst; und dadurch, daß die Konizität des vorderen Teils (D3 - D9) der letzten zwei oder drei Instrumente (1c, 1d, 1 e) des Satzes von einem Instrument zum nächsten wächst, während sich die Konizität des hinteren Teils (D9 - D16) dieser letzten zwei oder drei Instrumente (1c, 1d, 1e) des Satzes von einem Instrument zum nächsten vermindert.
  2. Satz von Instrumenten gemäß dem Anspruch 1, dadurch gekennzeichnet, daß der aktive Teil eines jeden Instruments des Satzes aus mindestens zwei Abschnitten verschiedener Konizität geformt ist, wobei der Öffnungswinkel dieser zwei Abschnitte von dem vorderen Ende des benannten aktiven Teils in Richtung seines hinteren Endes anwächst.
  3. Satz von Instrumenten gemäß dem Anspruch 1 oder 2, dadurch gekennzeichnet, daß jedes Instrument des Satzes aus einem Umlaufkörper besteht, dessen Mantellinie eine Kurve ist, deren Tangente an jedem Punkt mit der longitudinalen Achse des Instruments einen Winkel bildet, der vom vorderen Ende des aktiven Teils des Instruments in Richtung seines hinteren Endes anwächst.
  4. Satz von Instrumenten gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das vordere Endstück eines jeden Instruments, einer schneidenden Kante entbehrend, zumindest eine spiralförmige Verengung mit einer nicht schneidenden Kehle aufweist, die für die Abfuhr der Abfälle des vom Instrument im Laufe seiner Arbeit losgelösten Zahnmaterials geeignet ist.
EP96105242A 1995-12-20 1996-04-02 Instrumentensatz zur Bearbeitung von Zahnwurzelkanälen Expired - Lifetime EP0780099B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH03603/95A CH691789A5 (fr) 1995-12-20 1995-12-20 Jeu d'instruments pour l'alésage des canaux radiculaires dentaires.
CH3603/95 1995-12-20
CH360395 1995-12-20

Publications (3)

Publication Number Publication Date
EP0780099A2 EP0780099A2 (de) 1997-06-25
EP0780099A3 EP0780099A3 (de) 1998-01-28
EP0780099B1 true EP0780099B1 (de) 2002-06-12

Family

ID=4259551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96105242A Expired - Lifetime EP0780099B1 (de) 1995-12-20 1996-04-02 Instrumentensatz zur Bearbeitung von Zahnwurzelkanälen

Country Status (5)

Country Link
US (1) US5658145A (de)
EP (1) EP0780099B1 (de)
JP (1) JP3955343B2 (de)
CH (1) CH691789A5 (de)
DE (1) DE69621755T2 (de)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773749A1 (de) * 1995-01-17 1997-05-21 William B. Johnson Verfahren zur endodontischen bearbeitung eines wurzelkanals und instrumentensatz zur verwendung im verfahren
US6059572A (en) * 1995-06-06 2000-05-09 Ultradent Products, Inc. Endodontic methods for the anatomical, sectional and progressive corono-apical preparation of root canals with three sets of dedicated instruments
US6379155B1 (en) 1996-06-06 2002-04-30 Ultradent Products, Inc. Endodontic systems and methods for the anatomical, sectional and progressive corono-apical preparation of root canals with instruments utilizing stops
US6585513B2 (en) 1995-06-06 2003-07-01 Ultradent Products, Inc. Endodontic systems and methods for preparing apical portions of root canals with a set of files having large tapers
US6042375A (en) * 1995-06-06 2000-03-28 Ultradent Products, Inc. Endodontic systems for progressively, sectionally and anatomically preparing root canals with specific instruments for each section having predetermined working lengths
US6390819B2 (en) 1995-06-06 2002-05-21 Ultradent Products, Inc. Endodontic systems and methods for the anatomical, sectional and progressive corono-apical preparation of root canals with dedicated stainless steel instruments and dedicated nickel/titanium instruments
US6558163B2 (en) 1995-06-06 2003-05-06 Ultradent Products, Inc. Endodontic systems and methods for preparing upper portions of root canals with increasingly rigid files
US6045362A (en) * 1995-06-06 2000-04-04 Ultradent Products, Inc. Endodontic methods for progressively, sectionally and anatomically preparing root canals with specific instruments for each section having predetermined working lengths
US6053735A (en) * 1997-12-31 2000-04-25 Buchanan; L. Stephen Root canal preparation method
US6293794B1 (en) * 1999-02-16 2001-09-25 Ormco Corporation Endodontic instrument having regressive conicity
EP1184003B1 (de) * 2000-09-04 2003-07-02 Maillefer Instruments Holding SA Instrument zur Behandlung der Zahnwurzelkanäle
FR2817144B1 (fr) * 2000-11-29 2003-01-03 Micro Mega Sa Sequence d'instruments canalaires pour l'execution d'un protocole operatoire d'endodontie
FR2818891B1 (fr) * 2000-12-05 2003-06-06 Micro Mega Sa Instrument pour l'alesage mecanique des canaux rariculaires et sequence d'instruments comportant au moins un tel instrument
CA2502401C (en) 2002-10-18 2010-07-20 L. Stephen Buchanan Endodontic instruments with pilot tips and parabolic cutting flutes
US20060228667A1 (en) 2005-04-12 2006-10-12 Buchanan L Stephen Endodontic instruments with pilot tips and parabolic cutting flutes
US7311522B2 (en) * 2003-03-31 2007-12-25 Miltex Technology Corporation Endodontic instruments and method of manufacturing same
US7967605B2 (en) 2004-03-16 2011-06-28 Guidance Endodontics, Llc Endodontic files and obturator devices and methods of manufacturing same
US20050273123A1 (en) * 2004-03-22 2005-12-08 Smart Medical Solutions B.V. Catheter and method for use of such a catheter for removing a stenosis from a vessel
US20050272004A1 (en) * 2004-06-08 2005-12-08 Ormco Corporation Non-landed endodontic instrument and methods of making such endodontic instruments
US8454361B2 (en) 2005-04-08 2013-06-04 Michael J. Scianamblo Swaggering endodontic instruments
US20060246394A1 (en) * 2005-04-27 2006-11-02 Giuseppe Cantatore Endodontic files having improved lateral and torsional flexibility
US8408901B2 (en) * 2005-07-28 2013-04-02 L. Stephen Buchanan Variable land, multiple height flute contour design for endodontic files
US7435086B2 (en) * 2005-08-02 2008-10-14 Elio Vincenzo Giovanni Berutti Endodontic tool having reduced torque demands
US7300281B2 (en) 2005-08-02 2007-11-27 Giuseppe Cantatore Endodontic file having bi-directional scraping edges
US7766657B2 (en) * 2005-08-09 2010-08-03 Andris Jaunberzins Endodontic file combining active and passive cutting edges
US7270541B1 (en) * 2006-03-02 2007-09-18 Johnson William B Endodontic files having variable helical angle flutes
US20070207439A1 (en) * 2006-03-03 2007-09-06 Lynch Robert P Endodontic file having a taper defined by a continuously changing concavity
USD803399S1 (en) * 2006-04-10 2017-11-21 Michael J. Scianamblo Endodontic device
USD750246S1 (en) * 2006-04-10 2016-02-23 Michael J. Scianamblo Endodontic device
ATE448750T1 (de) * 2006-11-27 2009-12-15 Harald E Nordin Zahnwurzelkanalverankerungsanordnung
WO2011024201A2 (en) * 2009-08-26 2011-03-03 Ganesh J Pediatric endodontic rotary file
WO2014118587A1 (fr) 2013-01-30 2014-08-07 Maillefer Instruments Holding Sàrl Instrument pour l'alésage des canaux radiculaires dentaires
US9271740B2 (en) 2013-08-21 2016-03-01 Michael J. Scianamblo Precessional-motion bone and dental drilling tools and bone harvesting apparatus
US10543060B2 (en) 2015-12-03 2020-01-28 Ormco Corporation Fluted endodontic file
US20180055614A1 (en) * 2016-09-01 2018-03-01 National Guard Health Affairs Flared conical dental post
US10595961B2 (en) 2017-03-27 2020-03-24 Michael J. Scianamblo Endodontic instruments displaying compressibility
FR3064906B1 (fr) * 2017-04-06 2020-03-13 Cabinet Dentaire Vinci Foret aleseur pour percer et/ou aleser une racine d'une dent
USD842474S1 (en) 2017-10-20 2019-03-05 Ormco Corporation Endodontic file
US11510688B2 (en) 2018-04-18 2022-11-29 Michael J. Scianamblo Bone matter collection apparatuses

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FR2587197A1 (fr) * 1985-09-13 1987-03-20 Reynaud Marc Tenon d'ancrage d'une prothese dentaire dans la racine d'une dent
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IT1211650B (it) * 1987-07-10 1989-11-03 Riitano Francesco Serie di strumenti endodontici per la preparazione dei canali radicolari mediante manipoli a vibrazione sonica, ultrasonica, o meccanica
CH685097A5 (fr) * 1991-03-01 1995-03-31 Maillefer Instr Sa Jeu d'instruments pour l'alésage des canaux radiculaires dentaires.
US5257934A (en) * 1992-03-25 1993-11-02 Giovanni Cossellu Endodontic instrument for preparing the root canal
US5380200A (en) * 1993-10-08 1995-01-10 Quality Dental Products, Inc. Endodontic instrument of predetermined flexibility
US5897316A (en) * 1994-04-28 1999-04-27 Buchanan; Leonard Stephen Endodontic treatment system

Also Published As

Publication number Publication date
EP0780099A2 (de) 1997-06-25
DE69621755D1 (de) 2002-07-18
JPH09253092A (ja) 1997-09-30
DE69621755T2 (de) 2003-03-06
US5658145A (en) 1997-08-19
EP0780099A3 (de) 1998-01-28
CH691789A5 (fr) 2001-10-31
JP3955343B2 (ja) 2007-08-08

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